UITableView data is not showing - ios

Question

I created a custom class ("customClass") that is a subclass of UIView. I then added a tableView to it's subview, and created an array for the datasoucre. I set the delegate and datasource to self. Then in the storyboard, I set a UIViews class to customClass.
Then in the mainVC class, I set an array to some strings and set that array to the array in the customClass. When I run the app, it doesn't crash or give me any errors, but I don't see any results in the tableView
Here's how it's setup in mainVC.m:
self.myArray = [[NSArray alloc] initWithObjects:#"First", #"Second", #"Third", #"Fourth", #"Fith", #"Sixths", #"Seventh", nil];
self.myView.resultArray = self.myArray;
[self.myView.tableView reloadData];
Here is the code in customClass:
- (id)initWithCoder:(NSCoder *)aDecoder
{
if (self = [super initWithCoder:aDecoder]) {
[self setupTableView];
}
return self;
}
- (void)setupTableView
{
self.tableView.delegate = self;
self.tableView.dataSource = self;
self.tableView = [[UITableView alloc] initWithFrame:self.bounds style:UITableViewStylePlain];
[self addSubview:self.tableView];
}
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
return [self.resultArray count];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:#"cell" forIndexPath:indexPath];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:#"cell"];
}
[cell.textLabel setText:self.resultArray [indexPath.row]];
return cell;
}
When I run the app, I don't see any results in the tableView although I do see a tableView shown. What am I doing wrong, and how can I fix it?
Edit
Just realized, cellForRow doesn't even get called! I did a reloadData, and it still didn't get called.

Answer 1

initWithFrame: - It is recommended that you implement this method. You
can also implement custom initialization methods in addition to, or
instead of, this method.
initWithCoder: - Implement this method if you load your view from an
Interface Builder nib file and your view requires custom
initialization.
initWithCoder is called much before init and viewDidLoad methods
In MainVC
viewClass *vc = [[viewClass alloc] initWithFrame:self.view.frame];
vc.resultArray = [[NSArray alloc] initWithObjects:#"First", #"Second", #"Third", #"Fourth", #"Fith", #"Sixths", #"Seventh", nil];
[vc.tableView reloadData];
[self.view addSubview:vc];
In Custom Class...
-(id)initWithFrame:(CGRect)frame
{
self = [super initWithFrame:frame];
if (self) {
[self setupTableView];
}
return self;
}
- (void)setupTableView
{
self.tableView = [[UITableView alloc] initWithFrame:self.frame style:UITableViewStylePlain];
[self.tableView registerClass:[UITableViewCell class] forCellReuseIdentifier:#"cell"];
[self addSubview:self.tableView]; // Datasource and delegate after alloc init
self.tableView.delegate = self;
self.tableView.dataSource = self;
}
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
return [self.resultArray count];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:#"cell" forIndexPath:indexPath];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:#"cell"];
}
[cell.textLabel setText:self.resultArray [indexPath.row]];
return cell;
}
Register Cell when using Custom UItableviewCell, Otherwise don't use [tableView dequeueReusableCellWithIdentifier:#"cell" forIndexPath:indexPath];, it will crash.

Answer 2

You can set customClass's backgroundColor to red,and then check the customClass is added on the mainVC's view.